This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X450, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC SU32~50 Standard Cylinder SU50X450 is a double-acting profile-type standard cylinder with a Ø50mm bore and 450mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X450, which matches its bore, stroke, force and mounting.
The AirTAC SU50X450 is a discontinued double-acting profile-type cylinder with a 50mm bore and 450mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa, using a 1/4" port and a 20mm piston rod. AirTAC replaced this end-of-line unit with the SAU50X450, a direct alternative sharing the exact bore, stroke, force, port and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a sensor; the SAU upgrade also enables CMSG/DMSG/EMSG switches on magnetised variants. The extruded aluminium body is more compact than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU32~50 Standard Cylinder SU50X450 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X450 |
| Bore size | Ø50 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X450 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X450 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Pushes packages laterally across a belt at 982 N push force, with the 450mm stroke clearing wider product lanes.
Acts as a pneumatic stop for inbound pallets, absorbing kinetic energy using the adjustable 21mm air cushions.
Applies downward clamping pressure for light assembly tasks, safely handling up to 50 kg vertical loads.
To replace this discontinued SU50X450, order the SAU50X450. Confirm your 1/4" port, M16x1.5 rod thread and SC-series mounting (LB/FA/FB/CA/CB) carry over directly. This non-magnetised SKU cannot take a sensor; if you need position detection, specify an SAU-S model and migrate to CMSG/DMSG/EMSG switches (the SU used legacy CS1-B/DS1-B). At 0.5 MPa you get 982 N push; if undersized, the 63mm bore yields 1559 N. The 450mm stroke requires an external guide to prevent rod bending under side loads. For load holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. The SAUF variant offers a built-in valve the SU lacked.
Replacement checklist
Yes, the AirTAC SU50X450 is discontinued. The direct replacement is the SAU50X450. It matches the 50mm bore, 450mm stroke, 982 N force, 1/4" port and SC-series mounting. You can swap it directly without altering your mechanical setup.
It provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this specific SKU has no magnet, it cannot accept magnetic switches; sensing requires upgrading to an SAU-S variant using CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X450 replacement — usually within 7-8 hours.